Preparation method of insoluble anode plate for wastewater reuse

A soluble anode and waste water technology, applied in electrodes, electrolysis process, electrolysis components, etc., can solve the problems of reduced anode service life, anode erosion, and harsh anode working environment, and achieve uniform current distribution, uniform electroplating layer, and a wide range of applications. Effect

Inactive Publication Date: 2016-11-16
SUZHOU JIDAO ELECTRODE TECH
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Problems solved by technology

[0003] Moreover, in the electrolysis process of wastewater recovery, due to the harsh working environment of the anode, it needs to withstand a large current, the composition of the electrolysis wastewater is complex, the erosion of the anode is serious, and the service life of the anode is reduced

Method used

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Embodiment Construction

[0039] The specific embodiments of the present invention will be further described in detail below with reference to the examples. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

[0040] The difference between the preparation method of the insoluble anode plate for wastewater reuse is that the metal plate is used as the substrate to prepare the precious metal coating. During this period, the metal plates used may be titanium plates, zirconium plates, or tantalum plates. Of course, titanium plate is better. Considering the convenience of subsequent use, it can also be divided into several small pieces. At the same time, through the pretreatment process, at least one layer of precious metal coating is applied on the substrate. In order to effectively cope with the subsequent use environment in waste water, the pretreatment process adopted in the present invention includes heat treatment and etching ...

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Abstract

The invention relates to a method for preparing an insoluble anode plate for waste water reuse, which is characterized in that: a metal plate is selected as a substrate to prepare a noble metal coating, and at least one layer of the noble metal coating is coated on the substrate through a pretreatment process. At the same time, the pretreatment process adopted includes heat treatment and etching process, and the substrate is a plate-like structure. Thus, the common anode mesh can be divided into several small pieces for processing, so as to ensure that the current distribution of the anode mesh is uniform during the electroplating process, so that the electroplating layer of the cathode plate is more uniform. It has a wide range of uses and can meet the preparation needs of a crack-free structure and stable anode, and can be used in electroplating, hydrometallurgy and metal foil preparation. The base is plate-shaped, and its size can be flexibly designed according to the requirements of use, and can be customized for actual processing needs.

Description

technical field [0001] The invention relates to a method for preparing an anode, in particular to a method for preparing an insoluble anode plate for wastewater reuse. Background technique [0002] In the copper recycling process of micro-etching wastewater, electrolytic recovery is widely used in copper recovery of micro-etching wastewater because of its high recovery efficiency. At the same time, in the electrolytic recycling process, the life of the anode titanium mesh directly determines the recycling cost. [0003] In addition, in the electrolysis process of wastewater recovery, due to the harsh working environment of the anode, it needs to withstand a large current, the composition of electrolysis wastewater is complex, the erosion of the anode is serious, and the service life of the anode is reduced. [0004] Therefore, it is particularly critical to find an anode with low price, high recycling efficiency and long service life. [0005] In view of the above-mentione...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C7/02C25D17/10
CPCC25C7/02C25D17/10
Inventor 曾宪兰谢信韦黄金张奇飞
Owner SUZHOU JIDAO ELECTRODE TECH
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